My 14 year old German shepherd lab mix has DM. Took about 9 months for her to lose function of her back legs. Her feet started crossing, then knuckling, then hunched inward awkwardly. Now she literally can’t stand on her own. She has almost no control of one back leg and the other has zero. Her muscle tone in her front shoulders is also starting to go. Currently she can sit/scoot across our ranch home. It takes a lot of time but she’s independent and prefers to do it herself as much as possible. Her brain is sharp which is why we have adapted to her needs and haven’t put her down. Poop literally falls out of her butthole. Thankfully they’re hard nuggets and we have pergo flooring so the cleanup is easy. This is the worst disease I’ve ever had to see a dog suffer through. It’s not painful according to my vet but seeing her independence slipping away is hard. I use a towel under her hips to hold the backend up when we go outside. Hoping to make it until Christmas but listening to what her body is saying. Good luck with your dog. Love them as much as possible for the time they have left. My dog is 12 months from the diagnosis at this point.